Humans are only walking digestive tracts. From an evolutionary perspective, all other organs originated from a primitive gut and have only one purpose: to serve it.
(credits to /u/susieq0044@sh.itjust.works who phrased it so well in this post, even though i had the thought already years ago)
Or… is the reproductive system there so the digestive system can replicate itself?
It’s all there so the DNA can make more DNA, if you’re serious about reducing humans to their most meaningless components.